gray iron casting
The thick gray structure of gray iron allows for great machinability. Specific criteria for hardness & wear can be satisfied by grades 25, 30, 35, and 40, as well as heat treatments, which can produce even better mechanical qualities. Gasoline and diesel engine blocks & cylinder liners, as well as structural machine components that need vibration dampening, are common uses for gray iron. The most adaptable foundry metal is gray iron. The high carbon concentration makes it simple to melt and cast metal in the foundry and also to machine it in subsequent production processes. Engineers have the most design freedom thanks to the great fluidity, minimal shrinkage, or absence of shrinkage. Tensile strength may be changed from under 20,000 psi to over 60,000 psi, and hardness can be changed from 100 to 300 BHN in the as-cast state by making the proper adjustments to the composition and casting process. Before defining a higher strength & hardness grade of iron, the hardness, which may be enhanced to H g by additional heat treatment, should be carefully examined. Data are presented which will enable the use of the Brinell hardness test to establish the minimum tensile of the iron in a casting, even though the connection between Brinell tensile strength and hardness for gray iron is not constant.
BD Machinery is a manufacturer of high performance Hobs for all types of automated welders. We also manufacture shafts and impellers for waterjet and plasma cutting applications as well as CNC machining parts, sand casting products, and machining parts.
Calibrated CNC machining parts provides a wide range of highly skilled machining parts. Bd.machinery offer a range of products from Sand Casting, CNC Machining and Grinding Machines to help you turn your ideas into reality.
We cater to industrial machinery, mining and material handling industries with highly accurate machined parts made of high strength steel, stainless steel and aluminium alloys.
We are professional manufacturer of CNC Machining parts, sand casting products, machining parts etc.; We have over 30 years experience in CNC machining and injection molding. The main product is 4 arms toilet bowl brush holder and 5 pole toilet brush holder with arc welding machine.
Please contact us for further information on +86 186-0419-2837
